WATCH FULL EPISODES 👉 SUBSCRIBE TO CBBC 👉 Happy Valentine's Day from CBBC! To celebrate, follow along with Doctors Chris and Xand as they show you how to build your very own working heart model, all you need is the following: - 4 plastic bottles - balloons - 4 silicone straws - scissors - sticky tape - blackcurrant cordial Watch full episodes of Operation Ouch! Do Try This at Home NOW on BBC iPlayer! For more fun, CBBC games, shows, quizzes and great makes! 👉 #CBBC #operationouch #science #stem #scienceforkids #stemforkids
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